/*
 * Galaxium Messenger
 * Copyright (C) 2007 Paul Burton <paulburton89@gmail.com>
 * 
 * License: GNU General Public License (GPL)
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

using System;
using System.Collections.Generic;
using System.Reflection;

namespace Galaxium.Protocol.Msn
{
	[AttributeUsage (AttributeTargets.Class)]
	public class PayloadCommandAttribute: Attribute
	{
		static Dictionary<Type, PayloadCommandAttribute> _instances = new Dictionary<Type, PayloadCommandAttribute> ();
		
		bool _isIn;
		bool _isOut;

		public bool IsIn
		{
			get { return _isIn; }
		}
		
		public bool IsOut
		{
			get { return _isOut; }
		}
		
		public PayloadCommandAttribute (bool isIn, bool isOut)
		{
			_isIn = isIn;
			_isOut = isOut;
		}
		
		public PayloadCommandAttribute ()
			: this (true, true)
		{
		}
		
		static PayloadCommandAttribute ()
		{
			foreach (Type type in Assembly.GetExecutingAssembly ().GetTypes ())
			{
				foreach (PayloadCommandAttribute att in type.GetCustomAttributes (typeof (PayloadCommandAttribute), false))
					_instances.Add (type, att);
			}
		}
		
		public static PayloadCommandAttribute Find (Type cmdType)
		{
			if (_instances.ContainsKey (cmdType))
				return _instances[cmdType];
			
			return null;
		}
	}
}
